Chain connection



A. P. GRIFFIN. CHAIN CONNECTION. j APPLICATION FILED APILZI, |922.

BIB-issued Sept. 5, 1922'.

ALntPcr PGM-'Fm InvEnToR Reissued sept. s, 1922.

UNITED STATES PATENTv OFFICE.

ALBERT P. GRIFFIN, OF TROY, NEW YORK, ASSIGNOR OF ONE-HALF TO`ARROW VG'RIII MANUFACTURING COMPANY, INC., 0F GII-ENS FALLS, NEW YORK, A CORPORATION OF NEW YORK.

Original No .`1,v394,618, dated October 25, 1921, Serial No. 459,382, nfiled CHAIN CONNECTION.

reissue led April 21, 1922. Serial No. 555,902.

To all whomr t may concern:

Be it known that I, ALBERT P. GRIFFIN, a citizen of the United States, residing at Troy, in the county of Rensselaery and State of New York, have invented newand useful Improvements in Chain Connections, of which thefollowing is a specification.

This invention relates to improvements in chain connections, proposing a device which' is adapted for connecting together chain links of various kinds, but is particularly adapted for connecting the cross-chains with the longitudinal chains of a non-skid chainlv device. I v. The principal object of the invention 1s to U provide a secure, yet readilyseparable, con- "nection between dinal chain.

Other objects will appear Vin connection with the following description.v

The invention consists generally in the combination of a link-receiving coupling part having terminal hook ,mea-ns and a a cross-chain and a longituguard concentrieally mounted relatively toy the hook means and having. such form` and y relation that it may b e readily manipulated and is available to .threada closed crosschain link upon .the couplingl part and a closed longitudinal terminal hook means, the` guard being norl mally held by the longitudinal chain link in its operative position inwhich it closes the coupling part and secures the closed-links.

An embodiment of the invention is illus-` trated in the accompanying drawings, it being understood, however, that the disclosed embodiment isniereIy of a form that is preferred, as nowconsidered. In said drawigure 1 is a view' in perspective of thel Aguard ofmy improved ohainconnection.V

shaped coupling linkiadapted to be rota Figure 2 .is a v1ew in 'perspective Ofa U- tively mounted upon the guard.

Figure is a view 4 the U-shaped linkrotatively mounted upon 'i the guard.

j Figure 4 is a view same.

Figure 5 is a cross-section of the same. Figure 6 is a front viewof the same.

Figure 7 is a view in perspective illustrat-v chain link within the in perspective showing through aA vfull in side elevation ofthe Figure l() is a view in perspectiveof a section of a longitudinal Chain.

Figure 1l is a view in perspective illustrating the manner in which the link of the longitudinal chain is seated in thel slot in the guard' and in the hook-terminals ofthe U- shaped link preparatory to vthreading the ends of the U-shaped linkthrough the longitudin'al link. .1

Figure 12 is a .similar view showing .the hook-terminals ofthe U-shaped linkthreaded through the link chain. 4 Figure 13.. is a view similar to Fig. 4, showing. chain connected with a cross-chain. A

Figure 14 isa view similarto Figure 6, illustrating a modified form of guard.

Referring to the drawings wherein the invention is shown in preferredv form, lis a guard, preferably having a circumferential Harige 2, andy on Opposite sides thereof a pair of trunnions'3-, 3 and formed with an open slot 4 extending along one side of said flange and through one and preferably both of the trunnions, which nal chain or a closed'link Gof a cross-chain.

. A coupling link 7. preferably U-shaped, is-

` encircle the respective trunnions with thev eirthe guardV between the guard being movable cumferentialflange 2 of said terminals,V

revolution. f The hook-shaped terminals 8 are formed with openings 9 of a width to freely receive either the link 5 or the link 6, but these terminals are made to encircle the respective trunnions more than one hundred eighty de- April 7, 1 921. Application for.`

of the longitudinal in cross-section a link of the longitudinal slot is of"dimensions to\ i i freely receive either a vlink 5 of` a longitudigrees whereby they are securely though yrotatively mounted upon the trunnions.

I have shown in the drawings only a short section of the longitudinalfcha'in and only a short section of a cross-chain. l

The cross-chains are made of a numberr of closed links 6 terminating at 'each end in a U-'shaped link 7 whereby the cross-chain is connected with a longitudinal chain.

By means of my improved connection the closed link portiony of a cross-chain can readily beiremoved and'replaced, replacement "of the terminal U-shaped links being rarely required as they are not exposed to the same` wearing action as the closed links of the cross-chain. y

In removing a closed link 6 from the connection, the U-shaped `rlink is moved into such a rotative position with respect to the guard that the open-ings 9 in its hook terminals registerv with the slot 4 in rthe guard, which position is shown i-n Figs. 3 and 4.

The closed link 6 which engages the U` shaped link is then moved along one'of vthe members of the U-shaped link through the opening in the hook-terminal of thatfmember, .and into the slot in the guard as shown in Figure 9. l

The U-shaped link isy then rotatively movedin the direction of the arrowl() relatively to the guard and link 6 causing said hook-'terminal to be unthreaded from the closed link 6, thereby releasing :the closed link, the releasing position beingshown in Figure 7, and intermediate position being shown in Figure 8.

In applying 'a closed link 6" to the U- shaped link the operation `is reversed, the closed link being .inserted through the opening of a hook-terminal of the U-shaped link into the slot 4 in the guard in the position shown in Figure 7, and the U-shaped link is then rotatively moved in the direction of the arrow l1, relativelyr to the lguard and link 6 causin the end of the hook-terminal to be threade through the closed link until l the parts reachthe position shown in Figure 9, in which the closed link 1is threaded upon the vhody of the Ufshaped link, Figure S showing the intermediate position as before.

In attachingr thercross-chai-n to the longi-v tudinal Chain, the -U-Shapqd um; ,and guard are l.brought to the position lshown in Figs.

3 `and 4,1 and a link 5 of the longitudinal.`

chainis insertedthrough the openings 9 in the hook-:terminals of the U-shapedlink into the` slot 4in the lguard as shown in Figure 11.

Bya relative rotative, movement between` the U-shaped vlink and they guard the direc.- tionof whichv is indicated'fby the arrow l2,

p J,withrespect to the "LJ-shaped link, the jhookterminals arerthreaded through the longitudinal chain link until the parte assume the relatlvepos'itlion shown in Figs.' 12 and 13, 1n gw'hlch position the 'cross-chain is secured operation just described serves to release the cross-chain from the longitudinal chain.

When the skid chain is in use on `a tire the side chains lie flat at the sides of the tire and the cross chains are stretched across the tire with the Vresult that the 'links 5 'are 'effective securelyto hold the guards 1 of the several coupling links in ytheir operative positions in which they close said coupling links and secure thereon theadjacent closed links r and G.

In Figure :14, l have shown the trunnlons 3 formed with enlarged heads or flanges 13` whereby the hook-terminals of rthe U-s aped` link are confined, and spreading-of the link is prevented. i y

Having described my invention I claim:

1. A chain-connection `comprising in combination a guard having a pairof trunnions on opposite sides of a circumferential flange, and provided with an open link-receiving slot alongvone side of said iange and trunnions; and a U-shaped link having terminals rotatively engaging the respective trunnions and severally provided `with link-receiving openings adapted to register with saidi open slot in one rotative position of said Ushaped link relatively to --said guard.

2. The combination` with a cross-chain having a closed link,` and a lil-Shaped link having open hook-terminals whereby it can be threaded through said closed link; of a guard having a circumferential flange Veirtendingl between, and a pair of trunnions on opposite sides vof said flange rotatively engaged by, said hook-terminals, ='said guard beingvpr'ovided with Yan open link-receiving slot along one side of said flange and trunnions adaptedto register with the openings in said hookfterrninals in one rotative posi-v tion of -said guard relatively to sai Un shaped link.y Y

3. The combination with `a longitu'dinal` chain; and a cross-chain having a closed link, and' a .Ushaped link having open hook,- terminals whereby, it can Abe threaded through said closed link, and through a link of. said longitudinal chain; of a guard having a circumferential flange extending between, a-nd a pair of .trunnions on opposite said hook-terminals, said guard beingfpr'o` vided with an open slotalong one side of said liange and trunnions Iadapted to regis# ter with theopenings in said lhook-terminals in one rotativepositionfof. saidguard rela.

tively to said U-'shap'ed link, in* whichvposition ,eithe'ri 'aid closed link of Vthe cross- `chain, or said link of the longitudinal chain can beinserfted .through the openingsin `said hook-shaped 'terminals into said slot in the guard. r

,4j A chain-connection comprising in combinationagguard having a ,pair of trunnions on opposite sides of a circumferential flange, and provided with an open link-receiving slot along oneside of said flange and trunnions; and a U-shaped link saving terminals rotatively engaging the respective trunnions and severally provided with link-receiving openings adapted to register with said open slot in one rotative position of said U-shaped link relatively to said guard, said guard having hook-terminal-confning flanges on the outer ends of said trunnions.

5. A chain connector comprising a cou.-

pling link having terminal hook means and having its bight open at said. means and a guard journalled in said hook means for movement through a full revolution; said guard having an open link receiving recess adapted in one position of said guard to permit a coupled link to be threaded upon a side bar of said coupling link as and for the purpose set forth.

6. A chain connector comprising a U- shaped coupling link having spaced terminal yhooks and a guard journalled in Said hooks for movement through a full revolution, said guard extending between said hooks and having an open link-receiving recess extending to at least one end thereof as and for the purpose set forth.

7. A chain connector comprising a U- shaped coupling link having spaced terminal hooks and a guard journalled in said hooks for movement through a full revolution, said v forth.

8. A chain connector comprising a linkreceiving coupllng part having terminal hook means and a blght open at said means and a guard mounted concentrically of said means and movable through a full revolution, said guard having an open link receiving recess adapted'in one position of said guard to permit a coupled link to be threaded upon said part as and for the purpose set forth. f

9. A chain connector comprising a coupling link having terminalhook means and having its bight open at said means and a guard journalled in said hook means and serving simultaneously to hold two links in engaged relation with said coupling link, said guard having an open link receiving recess extending to at least one end thereof and for the articulation of said several links being manipulated successively to two positions, in the first of which a coupled link engaged in said recess may be threaded upon a side bar of the coupling link and in the second of which another coupled link may be threaded over said hook means.

In testimony whereof, I afiix m signature.

ALBERT P. Gr IFFIN. 

